本文選題：半導體激光器　切入點：集成電路　出處：《激光雜志》2017年08期 　論文類型：期刊論文

【摘要】：目前半導體激光器大都輸出功率不穩(wěn)定,而且瞬態(tài)電流或電壓尖峰等許多因素都很容易損壞激光器。針對這一類問題,設(shè)計了由晶體振蕩電路和分頻電路組成的集成激光器調(diào)節(jié)電路,對光源進行調(diào)節(jié)以減小背景光的影響。利用電壓負反饋原理設(shè)計恒流驅(qū)動電路,通過防止電、斷電沖擊保護電路、通過延時軟啟動電路、過流保護電路以及紋波抑制電路的方法,保證了穩(wěn)定控制半導體激光器的集成電路。利用PID控制器取代傳統(tǒng)模擬電路,縮短激光器反應(yīng)時間。實驗結(jié)果表明,本文方法能有效穩(wěn)定半導體激光器輸出功率,延長半導體激光器使用壽命,適合實際應(yīng)用。
[Abstract]:At present, most semiconductor lasers have unstable output power, and many factors, such as transient current or voltage spike, can easily damage the laser. An integrated laser regulating circuit composed of crystal oscillation circuit and frequency divider circuit is designed to adjust the light source to reduce the influence of background light. The constant current driving circuit is designed by using the principle of negative voltage feedback. By means of time-delay soft-start circuit, over-current protection circuit and ripple suppression circuit, the IC which can control semiconductor laser stably is ensured. The conventional analog circuit is replaced by PID controller. The experimental results show that the proposed method can effectively stabilize the output power of the semiconductor laser, prolong the lifetime of the semiconductor laser, and be suitable for practical application.
【作者單位】： 鄭州工業(yè)應(yīng)用技術(shù)學院機電工程學院;
【基金】：河南省高等學校重點科研項目(15B520015)
【分類號】：TN248.4
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本文編號：1611568